هدفت الدراسة إلى الكشف عن أثر برنامج تعليمي إثرائي في ضوء تطبيقات تقنية النانو المتعلقة باستدامة الموارد الطبيعية في تنمية القدرة على الابتكار نحو المشكلات البيئية لدى طالبات الصف الحادي عشر بسلطنة عُمان، ولتحقيق أهداف الدراسة استُخدِم المنهج التجريبي ذو التصميم شبه التجريبي، حيث طُبّق على عيّنة تكوّنت من 100 طالبة من طالبات الصف الحادي عشر بمحافظة مسقط، قُسّمت بطريقة قصدية إلى مجموعتين: تجريبية وعددها 50
... Show Moreهدفت هذه الدراسة إلى الكشف عن تصورات معلمي الدراسات الاجتماعية في سلطنة عمان حول الاقتصاد الرقمي، ولتحقيق أهداف الدراسة تم استخدام المنهج الوصفي، وتكونت عينة الدراسة من (488) معلما ومعلمة من معلمي الدراسات الاجتماعية في سلطنة عمان، وقد تم جمع البيانات بأداة (الاستبانة) المكونة من (40) عبارة، وقد توصلت نتائج الدراسة إلى وجود تصورات إيجابية لدى معلمي الدراسات الاجتماعية في سلطنة عمان حول تضمين الاقتصاد الرقمي ف
... Show MoreAromatic hydrocarbons present in Iraqi national surface water were believed to be raised principally from combustion of various petroleum products, industrial processes and transport output and their precipitation on surface water.
Polycyclic aromatic hydrocarbons (PAHs) were included in the priority pollutant list due to their toxic and carcinogenic nature. The concern about water contamination and the consequent human exposure have encouraged the development of new methods for
PAHs detection and removal.
PAHs, the real contaminants of petroleum matter, were detected in selected sites along Tigris River within Baghdad City in summer and winter time, using Shimadzu high performance liquid chromatography (HPLC) system.
Analysi
The study was carried out during the growing season 2013 in a private orchard in Diyala on pomegranate trees Punica granatum L. cv. Salimy which were nine old years, all trees that chosen had uniform in size and growth were trained on three trunk and planted at 4×4m to study the effect of three levels of potassium sulfate (0, 1500, 3000 mg.K.L-1) and three levels of Zinc (0, 500, and 1000 mg.Z.L-1) and three levels of Gibberellic acid (GA3) (0, 20 and 40 mg.L-1) on leaf and peel content of mineral elements, A factorial experiment with three replicate was carried out according to the (RCBD) using one tree on experimental unit, results Can be s
... Show MoreThis paper presents the effect of the static air-gap eccentricity on the performance of a three phase induction motor .The Artificial Neural Network (ANN) approach has been used to detect this fault .This technique depends upon the amplitude of the positive and negative harmonics of the frequency. Two motors of (2.2 kW) have been used to achieve the actual fault and desirable data at no-load, half-load and full-load conditions. Motor Current Signature analysis (MCSA) based on stator current has been used to detect eccentricity fault. Feed forward neural network and error back propagation training algorithms are used to perform the motor fault detection. The inputs of artificial neural network are the amplitudes of the positive and negati
... Show MoreBackground: Pilonidal sinus is a recurrence pathology that affects the gluteal area, cleft part of it. It affects many parts but mainly the sacral area and may present with various forms; from the asymptomatic cyst to severe infection in a form of painful abscess or sinus. The treatment of pilonidal sinus ranges from observation with good hygiene to excision of the sinus left wide incision. Recurrence may follow the excisional procedure and may need more operations. Many conservative ways had been used for the management of the sinus; laser (phototherapy) is one kind that may use. this paper aims to test the efficiency of the laser (diode 980nm) in the treatment of the sinus. material:
... Show MoreThe satellite image is multi band image,the first three bands have the largest wavelength and image information and usually contain noise due to different reason such as image band acquisition or transmission. In this paper an adaptive method implemented to denoising the satellite image by
using the Haar wavelet transform applied to the principle components bands of the satellite image.
The image denoising by Haar wavelet transform is applied on the first band(PC1).This band has found contain about 90% of the image information, in this case the time required for processing and storage size are reduced ,and the image appearance are more suitable than the processing the image bands directily.
In this paper, a shallow foundation (strip footing), 1 m in width is assumed to be constructed on fully saturated and partially saturated Iraqi soils, and analyzed by finite element method. A procedure is proposed to define the H – modulus function from the soil water characteristic curve which is measured by the filter paper method. Fitting methods are applied through the program (SoilVision). Then, the soil water characteristic curve is converted to relation correlating the void ratio and matric suction. The slope of the latter relation can be used to define the H – modulus function. The finite element programs SIGMA/W and SEEP/W are then used in the analysis. Eight nodded isoparametric quadrilateral elements are used for modeling
... Show MoreA field experiment was conducted at the field of Field Crop .Dept., College of Agric/Univ.of Baghdad .It was included five Inbreds {ZM34(ZE),ZM60,ZM19,ZM49W3E and CDN5}.That were given number (1,2,3,4,5) .Inbreds were tested for general and specific combining ability by using full dialle. Inbreds were planted in spring 2013 and at anthesis crossing between inbreds all possibilities were carried out In fall season of 2013 ,varietal trail for crosses and parents were conducted using RCBD with four replications to evaluate crosses and parents and estimate some genetic parameters. Statistical analysis revealed highly significant differences for all traits ,plant high, leaves no. leaf area index ,ea
... Show MoreGypseous soils are distributed in many regions in the world including Iraq, which cover more than (31%) of the surface area of the country. Existence of these soils, always with high gypsum content, caused difficult problems to the buildings and strategic projects due to dissolution and leaching of the gypsum caused by the action of water flow through soil mass. For the study, the gypseous soil was brought from Bahr Al-Najaf, Al-Najaf Governorate which is located in the middle of Iraq. The model pile was embedded in gypseous soil with 42% gypsum content. Compression axial model pile load tests have been carried out for model pile embedded in gypseous soil at initial degree of saturation of (7%) before and after soil satu
... Show MoreIn this paper, Response Surface Method (RSM) is utilized to carry out an investigation of the impact of input parameters: electrode type (E.T.) [Gr, Cu and CuW], pulse duration of current (Ip), pulse duration on time (Ton), and pulse duration off time (Toff) on the surface finish in EDM operation. To approximate and concentrate the suggested second- order regression model is generally accepted for Surface Roughness Ra, a Central Composite Design (CCD) is utilized for evaluating the model constant coefficients of the input parameters on Surface Roughness (Ra). Examinations were performed on AISI D2 tool steel. The important coefficients are gotten by achieving successfully an Analysis of V
... Show MoreThe fish sector is considered an important component of the economies of many countries in the world including Arab countries . This work is considered as the first attempt to study value chain for fish in Iraq. The objective of this study is to identify the main problems and constraints facing different channels or links the value chain of fish, and to analyse revenue, production costs, and to calculate some quantitative indicators like value added . The results showed that average value added of the diff
... Show MoreThe present work concentrates on the feasibility of the heat load reduction by utilizing some structural material with very poor heat conductivity as isolators for heat transmission. Average annular heating and cooling load is estimated for a typical building of certain area and design using ordinary structural material and EMMEDUE M2 building system. The basic element of the new structural material is made of a foam polystyrene core that is self extinguishing and chemically inert with varying density and thickness depending on panel type. The calculations are based on the average maximum and minimum monthly temperature in Baghdad. Building heating load could mainly depend on the average temperature difference per each daily hour per yea
... Show Moreلقد شكلت نظرية الجحود المبتسر للالتزامات العقدية ، معلما بارزا من
معالم تطور القانون الانكلوامريكي وتفرده من بين معظم الأنظمة القانونية ودليلا لا يرقى إليه الشك في قدرة القضاء الانكلوامريكي في خلق وإنشاء النظريات القانونية لإيجاد الحلول العادلة للوقائع التفصيلية التي تقع في الحياة القانونية العملية في الأحوال التي تعجز فيها النظريات القانونية التقليدية في إيجاد الحلول لها.
وللتزود بفكرة عن موض
... Show MoreVariation orders are an on-going phenomenon in construction and industry projects worldwide, particularly in the province of Sulaimani, where the project's damage from cost and schedule overrun because of variation orders. However, the effect on project costs and time overrun of variation order has yet to be identified. This study evaluates the impact of variation orders on the cost and time off in the Sulaimani governorate. Two hundred twenty-eight projects from various construction sectors built between 2007-2012 were adopted to calculate the contract cost and schedule overruns due to variation orders. Data analysis was applied in the study were descriptive statistics. One-way ANOVA was also applied to determine w
... Show MoreBackground: The best material for dental implants is polyetherketoneketone (PEKK). However, this substance is neither osteoinductive nor osteoconductive, preventing direct bone apposition. Modifying the PEKK with bioactive elements like strontium hydroxyapatite is one method to overcome this (Sr-HA). Due to the technique's capacity to provide better control over the coating's properties, RF magnetron sputtering has been found to be a particularly useful technique for deposition. Materials and methods : With specific sputtering conditions, the RF magnetron technique was employed to provide a homogeneous and thin coating on Polyetherketoneketone substrates.. the coatings were characterized by Contact angle, adhesion test, X-ray
... Show MoreBackground: The risk of antibiotics resistance (AR) increases due to excessive of antibiotics either by health care provider or by the patients.
Objective: The assessment of the self-medication Practice of over the counter drugs and other prescription drugs and its associated risk factor.
Subjects and Methods: Study design: A descriptive study was conducted from “20th December 2019 to 08th January 2021”. A pre validated and structured questionnaire in English and Urdu language was created to avoid language barrier including personal detail, reasons and source and knowledge about over the counter drugs and Antibiotics. Sample of the study was randomly selected.
... Show MoreFG Mohammed, HM Al-Dabbas, Iraqi journal of science, 2018 - Cited by 6
This research aims at achieving the following goals:- the first one is to Identify the actual management of the agricultural agent in knowing the agricultural innovations represented by the following (knowledge diagnosis, the acquiring and generating of knowledge, knowledge updating, knowledge planning, knowledge application publishing and sharing of knowledge, organizing and storing knowledge, knowledge observation). The second one is to identify the role of knowledge management of agricultural agent in improving the extension and field activities, the next one is to find out the relation between the aspects of the role of management of agricultural agent in knowing the agricultural innovation with improving the extension activi
... Show MoreA field study was conducted during the spring and autumn seasons of 2014 at the experimental farm of Field Crop Department, College of Agriculture (Abo-Ghraib) - University of Baghdad, to study the effect of Irrigation deficiency quantities and concentrations of Proline acid on yield , its components, water consumptive and water use efficiency of sunflower (Helianthus annus L. ) for Luleo hybrid. Randomized Complete Block Design (RCBD) in arrangement of a split-plot with three replications were used. Irrigation treatments, control (depletion 50% of available water) and 60% , 50% 40% of control treatment, were assigned as a main plots. w
... Show MoreThis experiment was carried out at laboratories of Agriculture and Marshes College , University of Thi-Qar and at laboratories of agriculture college , university of Basra during 2013 - 2014 . The aim of this study was to identify the effect of the different seeding rates (80,100,120 and 140 kg.ha-1) on viability and quality characters of four wheat cultivars ( Abu-Ghraib, IPA – 99 , Al-fatih and Al-Iraq ) seeds . Factorial experiments in CRD was used with four replication in two factors . The results showed that there were significant differences between two factors of study and their interaction. The seeds produced from seeding rate 80 kg.ha-1 gave th
... Show MoreThe research aimed to identify the level of bee keepers innovation to develop and increase productivity in the central region of Iraq , In order to achieve the goals of research a questionnaire consisted of two parts, designed the first part included a bilateral scale to measure the level of beekeepers innovations, consists of ( 46 ) paragraphs Distributed on five fields (bee keeping , the area to take advantage of the bees in environment, the detection of diseases and pests ,the treating diseases and pest control , the field of honey products and peripherals manufacturing ), The second part included a barometer quadrilateral to measure the reasons consists of ( 34 ) paragraphs Distributed on four pivots (environ
... Show MoreThis paper presents an experimental and theoretical analysis to investigate the two-phase flow boiling heat transfer coefficient and pressure drop of the refrigerant R-134a in the evaporator test section of the refrigeration system under different operating conditions. The test conditions considered are, for heat flux (13.7-36.6) kW/m2, mass flux (52-105) kg/m2.s, vapor quality (0.2-1) and saturation temperature (-15 to -3.7) ˚C. Experiments were carried out using a test rig for a 310W capacity refrigeration system, which is designed and constructed in the current work. Investigating of the experimental results has revealed that, the enhancement in local heat trans
... Show Moreيعد تحديد الحد الادنى للراتب من الضمانات المهمة التي يقرها المشرع في قوانين الخدمة المدنية والقوانين المتعلقة بها , في ضوء المعايير المعتمدة واهم الاعتبارات التي تدخل في تقرير هذا الحد بحيث يتناسب مع الوضع الاقتصادي العام ومراعاة تطوره من خلال اعادة النظر دوريا في زيادته بما يتلاءم مع تغير وضع الموظف ومركزه العام . لذا سوف يتم من خلال البحث بيان موقف المشرع العراقي من تقرير وتنظيم الحد الادنى لراتب الموظف ف
... Show MoreObjective: Synthesized a series of new thiourea (TU) derivatives, tested their antioxidant activity, and investigated their expected biological activity by theoretical study (computational methods). Methods: The derivatives were made using a one-pot reaction with two steps. Initially, succinyl chloride was mixed with KSCN to make succinyl isothiocyanate. Then, primary and secondary amines were used to make TU derivatives. The theoretical studies were done by Swiss ADME and molecular docking via Genetic Optimization of Linkage Docking (GOLD). Then evaluate antioxidant activity using the DPPH scavenging method. Results: FT-IR, 1H NMR, and 13C NMR spectroscopy show the verification of all the prepared derivatives. Compounds (II), (VIII),
... Show Moreيتناول هذا البحث منهجية الدكتور أشرف مؤنس في كتابة التاريخ ، من خلال دراسة أسلوبه في تحليل الأحداث التاريخية وتوثيقها , ويركز البحث على رؤية الدكتور أشرف مؤنس لمفهوم التاريخ وأبعاده ، إلى جانب تصوره لدور المؤرخ الحقيقي في تقديم رواية تاريخية دقيقة وموضوعية, كما يناقش الفرق الذي يحدده بين التاريخ الحديث والتاريخ المعاصر، مع تسليط الضوء على منهجه في التعامل مع المصادر التاريخية وتوثيق المعلومات.
اتسمت العلاقات الثقافية الفرنسية البريطانية خلال المدة 1970-1974، بتحول نحو مزيد من الانفتاح والتعاون ، مدفوعًا بانضمام بريطانيا في نهاية المطاف إلى السوق الأوربية المشتركة، وشهدت تلك المدة ذروة الجهود المبذولة لتجاوز التوترات السابقة وتعزيز الروابط الوثيقة، ولا سيما في سياق التكامل الأوربي، وامتازت العلاقات الفرنسية - البريطانية من الناحية الثقافية بكونها علاقة تكافوء بين الطرفين ، فقد سعت كلتا الدولتين إ
... Show MoreThis study was aimed to determine the practicality of using linear body measurement traits to predict body weight of Tazegzawt sheep breed in the experimental station of INRAA in Bejaia. 38 female and 16 male aged over 2 years were used to investigate the relationships between live weight and body measurements such as scapular-ischial length, withers height, rump height, heart girth, chest depth, shoulder width, hip width, pelvis length and cannon perimeter. Pearson correlations showed a strong positive significant correlation (p<0.001) between BW and rump height (r=0.76), withers height (r=0.73) and the chest depth (r=0.73), with variations by sex. The results of multiple regression and stepwise showed that chest
... Show MoreArtificial roughness applied to a Solar Air Heater (SAH) absorber plate is a popular technique for increasing its total thermal efficiency (ηt−th). In this paper, the influence of geometrical parameters of V-down ribs attached below the corrugated absorbing plate of a SAH on the ηt−th was examined. The impacts of key roughness parameters, including relative pitch p/e (6–12), relative height e/D (0.019–0.043), angles of attack α (30–75°), and Re (1000–20,000), were examined under real weather conditions. The SAH ηt−th roughened by V-down ribs was predicted using an in-house developed conjugate heat-transfer numerical model. The maximum SAH ηt−th was shown to be 78.8% as predicted under the steady-state condition
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